Casting of metals or the like.



1-. SGHNEIDER.

GASTING OP METALS OR THE LIKE.

APPLIOATION FILED MAR. 11, 1907.

Patented Feb. 2, 1909.

Fig. I.

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UNITED sTATEs PATENT orrron.

FRANK SCHNEIDER, OF LONDON, ENGLAND;

CASTING METALS OR THE LIKE.

Specification of Letters Patent.

Patented Feb. '2, 1909.

7 Application filed March 11, 1907. Serial No. 361,799.

the mold; its objects being to facilitate the release of the runner and the operation of fettling, to improve the appearance of the articles produced and to minimize defective or waste productions; thereby effecting a considerable economy in the cost of manufacture.

In the production of wheels, for example, by casting, where the gates have to be broken away while the casting is still hot, the metal in the boss being in a semi-molten state, and the metal in the runner being already in a solidified condition on account of smaller bulk, it frequently happens that the gates when breaking away carry with them a portion of the boss thereby damaging the face thereof with the result that the wheel is rejected and consigned to the waste heap.

The present invention is designed with a view to obviating the above defects and to this end it is proposed to provide the pattern with a runner seat or with runner seats formed of metal adapted for being secured to the pattern by screwing or other convenient means; the runner seat being adapted to the particular runner employed.

In order that the said invention may ,be clearly understood and readily carried into effect I will proceed to describe the same more fully with reference to the accompanying'drawings, in which Figure 1 represents in transverse section a runner seat constructed according to this invention, in which a solid plate is employed. Fig. 2 is a similar view showing the runner seat whereof the plate is cut away to form an aperture to allow of the use of a lifting plate. Fig. 3 is a view of a cast wheel illustrating the effect on the casting when the improved runner seat is employed in producing such articles. Fig. 4 is atsectional View showing the runner seat and lifting plate fitted to the pattern. Fig. 5 is a plan view of the lifting plate.

The runner seat constructed according to the present invention comprises a plate a having a projecting rim 1) formed on its face, the rim bein adapted as regards its inner side 0 to receive the foot of the runner (not shown) and as regards its outer side dto form an apex with the aforesaid inner side.

That is to say the inner side 0 may lie in a vertical plane and the outer side 03 in a plane at a suitable angle or inclination to the vertical, so that the upper or outer edge of the rim is of small diameter or transverse section.

The transverse section of the rim is thus approximately that of a right angled triangle as will be readily seen on referring to the drawing; the greater diameter being arranged at the foot of the rim 6 and the smaller diameter at the top thereof. The sides may be extended to any desired height but of course the higher the sides the more chipping or fettling will be necessary. If lifting plates be employed, the portion of the plate situated within the aforesaid rim 6 may be cut away as shown at e in Fig. 2 so as to form an aperture for admitting and applying the lifting means. In this connectiona portion a of the plate immediately within the rim is left so as to form a ledge or hearing for the foot of the runner.

f, f are holes for the reception of screws for securing the seat in the pattern.

The improved runner seat may be constructed in any suitable form and dimensions and of any suitable metal. By the use thereof the life of the patterns will be lengthened as the runners rest in the runner seat which being formed of metal prevents the breaking away of the material of the U pattern. Moreover the runners break off at the weakest part viz :the top of the rim pertaining to the runner seat and thus obviate'breaking into the casting as shown in Fig. 3; the number of wasters being thereby reduced, and an enhanced appearance imparted to the wheel or casting.

The runner seat is secured to the pattern a by means of suitable screws f and the portion of the plate a of the runner seat within the rim 6 is cut away as shown at c to form an aperture for admitting and applying the lifting means. Underneath the runner seat is positioned the lifting plate a which is formed with an elongated opening a A suitable key or other lifting means may be inserted in this opening and owing to the circular cavity a formed in the pattern may be turned to engage the sides of the same.

b is the runner pattern carried by the runner seat.

What I claim and desire to secure by Letters Patent of the United States is 1. Metal runner seat consisting of a flat plate formed on its outer face with a projecting rim which is positioned on said plate so as to have an inner and outer flange and adapted as regards its inner side to receive the foot of the runner and as regards its outer side to form an apex with the aforesaid inner side thereby constituting a shallow projecting rim of triangular form in transverse section.

2. The combination with a pattern of a de tachable metal runner seat consisting of a flat plate formed on its outer face with a projecting rim which is positioned on said plate so as to have an inner and outer flange and adapted as regards its inner side to receive the foot of the runner and as regards its outer side to form an apex with the aforesaid inner side thereby constituting a shallow projecting rim of triangular form in transverse section.

3. The combination with a lifting plate of a detachable runner seat consisting of a flat plate formed on its outer face with a projecting rim which is positioned on said plate side of said rim and on the inner side thereof, the latter flange receiving the foot of the runner said rim being adapted as regards its outer side to form an apex with the aforesaid inner side thereby constituting a shallow projecting rim of triangular form in transverse section.

5. The combination of a pattern. a lifting plate and a metal runner seat consisting of a flat plate formed on its outer face with a projecting rim and having a flange on the outer side of said rim and on the inner side thereof, the latter flange receiving the foot of the runner and adapted as regards its outer side to form an ape): with the aforesaid inner side thereby constituting a shallow projecting rim of triangular form in transverse section.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANK SCHNEIDER.

Vitnesses T. SnLnY VARDLE, J. SKERTEN. 

